Large kiln door lifting mechanism

Abstract

The utility model discloses a large-scale kiln door lifting mechanism, which relates to the technical field of kiln door opening and closing and comprises two groups of lateral door plates, a kiln door is arranged between the two groups of lateral door plates, a transverse support beam is arranged at the top of each lateral door plate, and a longitudinal auxiliary plate and a middle plate are fixedly arranged at the top of each transverse support beam. A speed reduction double-shaft motor is mounted on the middle plate; transmission connecting rod sets are installed at the two ends of the speed reduction double-shaft motor, and working chain wheels are installed at the ends, away from the speed reduction double-shaft motor, of the transmission connecting rod sets and located above the longitudinal auxiliary plate. An auxiliary seat is further mounted on the longitudinal auxiliary plate, and an auxiliary chain wheel is mounted in the auxiliary seat; a connecting base is installed at the top of the kiln door, a transmission chain is installed on the connecting base and connected to the working chain wheel and the auxiliary chain wheel in a wound mode, and a balancing weight is installed at the end, away from the connecting base, of the transmission chain, so that the technical problem that in the prior art, a winch drags and drags, a single steel wire rope or a pulley is prone to breakage due to too large pressure is solved.

Description

Technical Field

[0001] This utility model relates to the field of kiln door opening and closing technology, specifically a large kiln door lifting mechanism. Background Technology

[0002] A kiln door is a small, enclosed space with doors that open and close. The interior is typically filled with high-temperature calcined materials, such as cement. Kiln doors are used to seal the kiln chamber, prevent cold air from entering, and ensure the stability of the firing process within the kiln. Kiln doors are classified into three types: double-leaf kiln doors, slide-out kiln doors, and roll-up kiln doors.

[0003] The prior art CN201720085256.6 describes a kiln door control device for drying refractory materials, which is a counterweight kiln door switch. A winch drives a wire rope to rotate, with one end of the wire rope connected to the kiln door and the other end connected to the counterweight.

[0004] Existing technologies fail to address the following issues:

[0005] First, wire rope traction can only achieve traction through tension and does not have the effect of restricting the swing of the kiln door or counterweight; second, the winch installation lacks a supporting structure; third, the kiln door and counterweight are not at the same horizontal position, and the pressure on the pulley is relatively large due to wire rope traction alone, which can easily reduce the service life of the pulley.

[0006] To address these issues, we have developed a large-scale kiln door lifting mechanism. Utility Model Content

[0007] The purpose of this utility model is to make up for the shortcomings of the existing technology and provide a large kiln door lifting mechanism to solve the technical problem that the winch pulling and traction in the existing technology is prone to cause the individual wire rope or pulley to break due to excessive pressure.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a large kiln door lifting mechanism, including side door panels, two sets of side door panels with a kiln door installed between them, a transverse support beam installed on the top of the side door panels, a longitudinal auxiliary plate and a center plate fixedly installed on the top of the transverse support beam, a decelerated dual-axis motor installed on the center plate; a transmission linkage group is installed at both ends of the decelerated dual-axis motor, and a working sprocket is installed at the end of the transmission linkage group away from the decelerated dual-axis motor, the working sprocket being located above the longitudinal auxiliary plate;

[0009] An auxiliary seat is also installed on the longitudinal auxiliary plate, and an auxiliary sprocket is installed inside the auxiliary seat; a connecting seat is installed on the top of the kiln door, and a transmission chain is installed on the connecting seat. The transmission chain is wound around the working sprocket and the auxiliary sprocket, and a counterweight is installed at the end away from the connecting seat.

[0010] In a further technical solution, the kiln door includes a main body plate, with an I-beam steel mesh plate on one side of the main body plate; and side plates are provided at both ends of the main body plate, with the side plates fixedly connected to the main body plate and the I-beam steel mesh plate respectively.

[0011] A guide plate is installed on the side door panel, and the guide plate is fixedly connected to the side door panel by a mounting fastener;

[0012] The guide plate has a guide groove on one side opposite the main plate; a fixed shaft is installed on the side plate and a pulley is installed on the fixed shaft, and the pulley slides in the guide groove.

[0013] In a further technical solution, support plates are installed at both ends of the top of the side door panel, and the top of the support plates is fixedly connected to the transverse support beam.

[0014] In a further technical solution, the transmission linkage assembly includes a main connecting rod, with a coupling one and a coupling two respectively installed at both ends of the main connecting rod. The coupling one is connected to the output end of the dual-shaft reduction motor and the main connecting rod respectively; a connecting auxiliary rod is installed at the end of the coupling two away from the main connecting rod.

[0015] The connecting rod is mounted on the longitudinal auxiliary plate, and the working sprocket is mounted on the connecting rod; a bearing seat is mounted on the longitudinal auxiliary plate, and the bearing seat is connected to the connecting rod.

[0016] In a further technical solution, two sets of longitudinal auxiliary plates are provided on one side of the geared dual-axis motor. Each set of longitudinal auxiliary plates is provided with a bearing seat, and the two sets of bearing seats are arranged coaxially with the connecting main rod. The two ends of the connecting secondary rod are installed on the two sets of bearing seats, and two sets of symmetrical working sprockets are installed on the connecting secondary rod.

[0017] In a further technical solution, a position plate is installed between the two sets of longitudinal auxiliary plates, and two sets of auxiliary seats are fixedly installed on the top of the position plate; the auxiliary sprocket and the working sprocket are in the same longitudinal direction, and the diameter of the auxiliary sprocket is smaller than that of the working sprocket.

[0018] In a further technical solution, the transverse support beam, longitudinal auxiliary plate, and side door panel are all I-beams.

[0019] In a further technical solution, the first coupling and the second coupling are universal couplings, and sleeves are detachably connected to both ends; both ends of the connecting main rod and the connecting secondary rod are stepped shafts with position grooves, and positioning pins are installed in the position holes, which fix the connecting sleeves and the connecting main rod or the connecting secondary rod.

[0020] In a further technical solution, a connecting seat is installed at the bottom of the auxiliary sprocket. Two sets of connecting seats are provided, and each set of connecting seats is connected to two sets of transmission chains. A limiting plate is detachably installed between the two sets of longitudinal auxiliary plates. The limiting plate is provided with two sets of limiting grooves downward, and the limiting grooves are suitable for limiting the horizontal position of the transmission chain downward.

[0021] Compared with existing technologies, it has the following advantages:

[0022] This invention utilizes a transmission chain on working and auxiliary sprockets to achieve positional changes in the counterweight and kiln door. A dual-shaft motor with reduction gears ensures stable speed transmission, allowing for slow lifting of the kiln door and preventing collisions or tilting due to excessive speed. The invention supports the dual-shaft motor and its connecting main rods via a horizontal support beam, longitudinal auxiliary plate, and center plate mounted at the top. Two sets of working and auxiliary sprockets provide stable transmission, and four sets of transmission chains drive the connection between the kiln door and counterweight, reducing pressure and wear on individual pulleys and ensuring the lifespan of the installation equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the kiln door lifting mechanism of this utility model (the transmission chain is not shown);

[0024] Figure 2 for Figure 1 Enlarged view of part A;

[0025] Figure 3 This is a schematic diagram of the back of the kiln door lifting mechanism of this utility model;

[0026] Figure 4 This is a top view schematic diagram of the kiln door lifting mechanism of this utility model;

[0027] Figure 5 for Figure 4 Enlarged view of part B;

[0028] Figure 6 This is a schematic diagram of a single-unit side door panel structure in this utility model;

[0029] Figure 7 This is a schematic diagram of the kiln door structure of this utility model;

[0030] Figure 8 for Figure 7 Enlarged view at point C;

[0031] Figure 9 This is a structural schematic diagram of the connecting main rod, coupling one, and coupling two of this utility model;

[0032] Figure 10 This is a schematic diagram of the structure connecting the main rod;

[0033] Figure 11 This is a top view schematic diagram of another kiln door lifting mechanism of this utility model;

[0034] Figure 12 This is a side view of the limiting plate of this utility model.

[0035] In the diagram: 1. Side door panel; 2. Kiln door; 3. Transverse support beam; 4. Longitudinal auxiliary plate; 5. Center plate; 6. Gearbox dual-shaft motor; 7. Transmission linkage assembly; 8. Working sprocket; 9. Auxiliary seat; 10. Auxiliary sprocket; 11. Connecting seat; 12. Transmission chain; 13. Counterweight; 14. Guide plate; 15. Fixing component; 16. Support plate; 17. Position plate; 18. Limiting plate; 19. Limiting groove; 21. Main plate; 22. I-beam steel mesh plate; 23. Side plate; 24. Pulley; 71. Connecting main rod; 72. Coupling one; 73. Coupling two; 74. Connecting secondary rod; 75. Bearing seat; 76. Sleeve; Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1

[0038] Please see Figure 1-10 This utility model provides a technical solution: a large kiln door lifting mechanism, including a side door panel 1, two sets of side door panels 1 with a kiln door 2 installed between them, a transverse support beam 3 installed on the top of the side door panel 1, a longitudinal auxiliary plate 4 and a center plate 5 fixedly installed on the top of the transverse support beam 3, a reduction dual-shaft motor 6 installed on the center plate 5; transmission linkage groups 7 are installed at both ends of the reduction dual-shaft motor 6, and a working sprocket 8 is installed at the end of the transmission linkage group 7 away from the reduction dual-shaft motor 6, the working sprocket 8 being located above the longitudinal auxiliary plate 4; the reduction dual-shaft motor outputs symmetrically to both sides from the reducer output end.

[0039] An auxiliary seat 9 is also installed on the longitudinal auxiliary plate 4, and an auxiliary sprocket 10 is installed inside the auxiliary seat 9. A connecting seat 11 is installed on the top of the kiln door 2, and a transmission chain 12 is installed on the connecting seat 11. The transmission chain 12 is wound around the working sprocket 8 and the auxiliary sprocket 10, and a counterweight 13 is installed at the end away from the connecting seat 11. This utility model realizes the position change of the counterweight and the kiln door by driving the transmission chain on the working sprocket and the auxiliary sprocket. Stable speed transmission is achieved by a decelerated dual-shaft motor, realizing the slow lifting of the kiln door and avoiding collisions or tilting caused by excessive speed.

[0040] like Figure 7 As shown, the kiln door 2 includes a main body plate 21, with an I-beam steel mesh plate 22 provided on one side of the main body plate 21; side plates 23 are provided at both ends of the main body plate 21, and the side plates 23 are welded to the main body plate 21 and the I-beam steel mesh plate 22 respectively; as shown Figure 6 As shown, a guide plate 14 is installed on the side door panel 1, and the guide plate 14 is fixedly connected to the side door panel 1 by a mounting fastener 15; a guide groove is opened on the side of the guide plate 14 opposite to the main body plate 21; a fixed shaft is installed on the side plate 23, and a pulley 24 is installed on the fixed shaft, and the pulley 24 slides in the guide groove. Figure 8 As shown, one end of the fixed shaft is fixed to the side plate 23, and the other end is equipped with a pulley.

[0041] like Figure 1 As shown, support plates 16 are installed at both ends of the top of the side door panel 1, and the top of the support plates 16 is fixedly connected to the transverse support beam 3.

[0042] Combination Figure 1 , 2 As shown in Figure 9, the transmission linkage assembly 7 includes a main connecting rod 71. A first coupling 72 and a second coupling 73 are respectively installed at both ends of the main connecting rod 71. The first coupling 72 is connected to the output end of the dual-shaft reduction motor 6 and the main connecting rod 71, respectively. A second connecting rod 74 is installed at the end of the second coupling 73 away from the main connecting rod 71. The second connecting rod 74 is mounted on a longitudinal auxiliary plate 4, and a working sprocket 8 is mounted on the second connecting rod 74. A bearing seat 75 is installed on the longitudinal auxiliary plate 4, and the bearing seat 75 is connected to the second connecting rod 74.

[0043] Two sets of longitudinal auxiliary plates 4 are located on one side of the dual-axis reduction motor 6. Each set of longitudinal auxiliary plates 4 is equipped with a bearing seat 75, and the two sets of bearing seats 75 are coaxially aligned with the connecting main rod 71. The two ends of the connecting secondary rod 74 are mounted on the two sets of bearing seats 75, and two sets of symmetrical working sprockets 8 are mounted on the connecting secondary rod 74. A position plate 17 is installed between the two sets of longitudinal auxiliary plates 4, and two sets of auxiliary seats 9 are fixedly mounted on the top of the position plate 17. The auxiliary sprocket 10 is in the same longitudinal direction as the working sprocket 8, and the diameter of the auxiliary sprocket 10 is smaller than that of the working sprocket 8. The transverse support beam 3, the longitudinal auxiliary plates 4, and the side door panel 1 are all I-beams.

[0044] like Figure 9 and 10 As shown, coupling 72 and coupling 73 are universal couplings, and sleeves 76 are detachably connected to both ends; both ends of the connecting main rod 71 and connecting secondary rod 74 are stepped shafts with position grooves 77, and positioning pins are installed in the position holes, which fix the connecting sleeves 76 and the connecting main rod 71 or connecting secondary rod 74. A connecting seat 11 is installed at the bottom of the auxiliary sprocket 10. Two sets of connecting seats 11 are provided, and each set of connecting seats 11 is connected to two sets of transmission chains 12.

[0045] In use, the output end is driven to rotate by turning on the dual-shaft motor 6. The connecting main rods on both sides rotate in the same direction, driving the coupling 2 and the connecting auxiliary rod to rotate, thereby causing the working sprocket to rotate. A transmission chain is installed between the working sprocket and the auxiliary sprocket. The transmission chain drives the auxiliary sprocket to rotate. The two ends of the transmission chain are respectively installed with counterweights and connecting seats on the kiln door. The kiln door or counterweights are raised or lowered through transmission. The pulleys on both sides of the kiln door can slide in the guide groove, restricting the position of the kiln door on both sides.

[0046] Example 2

[0047] like Figure 11 and 12 As shown, another embodiment of this utility model is presented. Based on embodiment 1, a limiting plate 18 is detachably installed between the two sets of longitudinal auxiliary plates 4. The limiting plate 18 has two sets of limiting grooves 19 arranged downwards, which are suitable for limiting the horizontal position of the transmission chain 12 downwards. The limiting plate serves to constrain the transmission chain, preventing the transmission chain from falling off the working sprocket and auxiliary sprocket.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A large kiln door lifting mechanism, characterized in that, The system includes a side door panel (1), which has two sets of doors and a kiln door (2) installed between them. A transverse support beam (3) is installed on the top of the side door panel (1). A longitudinal auxiliary plate (4) and a center plate (5) are fixedly installed on the top of the transverse support beam (3). A decelerated dual-shaft motor (6) is installed on the center plate (5). A transmission linkage group (7) is installed at both ends of the decelerated dual-shaft motor (6). A working sprocket (8) is installed at the end of the transmission linkage group (7) away from the decelerated dual-shaft motor (6). The working sprocket (8) is located above the longitudinal auxiliary plate (4). An auxiliary seat (9) is also installed on the longitudinal auxiliary plate (4), and an auxiliary sprocket (10) is installed inside the auxiliary seat (9); a connecting seat (11) is installed on the top of the kiln door (2), and a transmission chain (12) is installed on the connecting seat (11). The transmission chain (12) is wound around the working sprocket (8) and the auxiliary sprocket (10), and a counterweight (13) is installed at the end away from the connecting seat (11).

2. The large kiln door lifting mechanism according to claim 1, characterized in that, The kiln door (2) includes a main plate (21), and an I-beam steel mesh plate (22) is provided on one side of the main plate (21); side plates (23) are provided at both ends of the main plate (21), and the side plates (23) are fixedly connected to the main plate (21) and the I-beam steel mesh plate (22) respectively. A guide plate (14) is installed on the side door panel (1), and the guide plate (14) is fixedly connected to the side door panel (1) by a mounting fastener (15); the guide plate (14) has a guide groove on the side opposite to the main body panel (21); a fixed shaft is installed on the side panel (23) and a pulley (24) is installed on the fixed shaft, and the pulley (24) slides in the guide groove.

3. A large kiln door lifting mechanism according to claim 2, characterized in that, Support plates (16) are installed at both ends of the top of the side door panel (1), and the top of the support plates (16) is fixedly connected to the transverse support beam (3).

4. A large kiln door lifting mechanism according to claim 2, characterized in that, The transmission linkage assembly (7) includes a main connecting rod (71), with a first coupling (72) and a second coupling (73) installed at both ends of the main connecting rod (71). The first coupling (72) is connected to the output end of the geared dual-shaft motor (6) and the main connecting rod (71) respectively. A second connecting rod (74) is installed at the end of the second coupling (73) away from the main connecting rod (71). The connecting rod (74) is mounted on the longitudinal auxiliary plate (4), and the working sprocket (8) is mounted on the connecting rod (74); a bearing seat (75) is mounted on the longitudinal auxiliary plate (4), and the bearing seat (75) is connected to the connecting rod (74).

5. A large kiln door lifting mechanism according to claim 2, characterized in that, Two sets of longitudinal auxiliary plates (4) are provided on one side of the deceleration dual-shaft motor (6). Each set of longitudinal auxiliary plates (4) is provided with a bearing seat (75). The two sets of bearing seats (75) are coaxially arranged with the connecting main rod (71). The two ends of the connecting secondary rod (74) are installed on the two sets of bearing seats (75). Two sets of symmetrical working sprockets (8) are installed on the connecting secondary rod (74).

6. A large kiln door lifting mechanism according to claim 5, characterized in that, A position plate (17) is installed between the two sets of longitudinal auxiliary plates (4), and two sets of auxiliary seats (9) are fixedly installed on the top of the position plate (17); the auxiliary sprocket (10) and the working sprocket (8) are in the same longitudinal direction, and the diameter of the auxiliary sprocket (10) is smaller than that of the working sprocket (8).

7. A large kiln door lifting mechanism according to claim 2, characterized in that, The transverse support beam (3), longitudinal auxiliary plate (4), and side door panel (1) are all I-beams.

8. A large kiln door lifting mechanism according to claim 4, characterized in that, The first coupling (72) and the second coupling (73) are universal couplings, and both ends are detachably connected with sleeves (76); both ends of the connecting main rod (71) and the connecting secondary rod (74) are stepped shafts and are provided with position grooves (77), and positioning pins are installed in the position holes. The positioning pins fix the connecting sleeves (76) and the connecting main rod (71) or the connecting secondary rod (74).

9. A large kiln door lifting mechanism according to claim 2, characterized in that, A connecting seat (11) is installed at the bottom of the auxiliary sprocket (10). There are two sets of connecting seats (11), and each set of connecting seats (11) is connected to two sets of transmission chains (12).

10. A large kiln door lifting mechanism according to claim 2, characterized in that, A limiting plate (18) is detachably installed between two sets of longitudinal auxiliary plates (4). The limiting plate (18) is provided with two sets of limiting grooves (19) downward, which are suitable for limiting the horizontal position of the transmission chain (12) downward.

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